Módszerek összehasonlítása

	Robusztus Variációs Inferencia	Variational Inference
Tudományterület	Bayes-statisztika	Bayes-statisztika
Módszercsalád	Bayesian methods	Bayesian methods
Keletkezés éve	2008-2018	1999
Megalkotó	Fujisawa & Eguchi (2008); Futami, Sato & Sugiyama (2018)	Jordan, Ghahramani, Jaakkola & Saul
Típus	Robust approximate Bayesian inference	Approximate Bayesian inference
Alapmű	Futami, F., Sato, I. & Sugiyama, M. (2018). Variational inference based on robust divergences. Proceedings of the 21st International Conference on Artificial Intelligence and Statistics (AISTATS), PMLR 84:813-822.	Jordan, M. I., Ghahramani, Z., Jaakkola, T. S., & Saul, L. K. (1999). An introduction to variational methods for graphical models. Machine Learning, 37(2), 183–233.
Alternatív nevek	RVI, robust VI, outlier-robust variational Bayes, power-divergence variational inference	VI, variational Bayes, VB, mean-field variational inference
Kapcsolódó	6	4
Összefoglaló	Robust variational inference (RVI) extends standard variational inference by replacing the Kullback-Leibler divergence with a divergence measure that is less sensitive to outliers and model misspecification — such as the beta-divergence or a Renyi-type divergence. This yields posterior approximations that remain well-behaved even when a fraction of the data departs from the assumed model.	Variational inference (VI) is a family of techniques that turn Bayesian posterior computation into an optimisation problem. Instead of drawing samples from the exact posterior — as Markov chain Monte Carlo does — VI posits a simpler, tractable family of distributions and finds the member of that family closest to the true posterior by maximising the evidence lower bound (ELBO). Introduced in its modern graphical-model form by Jordan, Ghahramani, Jaakkola and Saul (1999) and given a comprehensive statistical treatment by Blei, Kucukelbir and McAuliffe (2017), VI is now the standard scalable inference engine in probabilistic machine learning.